Injection-molded, high-temperature nylon built for harsh environments GEN4 Inline mount reducer - 3.0" intake to 3.5" center body to 3.0" exit port The in-line reducer is an add-on part for the GEN4 brake blower Injection-molded, high-temperature nylon built for harsh environments The GEN4 in-line reducer goes from 76mm/3.0" to 89mm/3.5" in the center body, down to 76mm/3.0" at the exit duct. The in-line reducer is an add-on part for the GEN4 brake blower. Injection-molded, high-temperature nylon built for harsh environments. Use case: For installation with existing or planned 76mm/3.0" brake ducting hose for truly performant and discreet brake cooling packaging.